Home / 18,474,929.72-25,489,803.42-12,893,027.75

Finding the Fourth Proportional to 18,474,929.72, 25,489,803.42 and 12,893,027.75

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Solution

The fourth proportional to 18,474,929.72, 25,489,803.42 and 12,893,027.75 is: 17,788,470.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,474,929.72 : 25,489,803.42 = 12,893,027.75 : x
  2. Step 2: Convert to fraction form
    18,474,929.72/25,489,803.42 = 12,893,027.75/x
  3. Step 3: Cross multiply
    18,474,929.72x = 25,489,803.42 × 12,893,027.75
  4. Step 4: Simplify right side
    18,474,929.72x = 328,640,742,836,104.94
  5. Step 5: Solve for x
    x = 328,640,742,836,104.94/18,474,929.72
  6. Step 6: Final answer
    x = 17,788,470.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.